As I said, it's business like any other. So I guess the best way is to do a research, call other companies in your area and maybe even other states and inquire about prices for different services. You only need to have a "feel" in order to anchor your starting prices.
From there you can adjust by feel as you move on, like as you get get inquiries and start negotiations with clients, etc.. If that sounds like taking too long, you can make a list of potential clients (business you might think would be interested in the service you provide), get in touch and ask if they'd have a minute or two for a quick presentation, and you could end by asking how much they'd be willing to pay of this or that if they were to hire you. I do that with all my companies early on because it's not only a good way to do market research and gauge interest, but also a bit of advertising as well!
My own experience is that prices vary quite a lot, because as I said it's in good part a forming market so most new clients don't have much experience hiring drone pilots. Also as mentioned by other colleagues here there are many variables not only to the capturing itself, but also the final product that will be delivered to the client.
If you gather a bit of info as suggested above you can draft a pricing list with the different services you want to provide, or grouping services as "packages" and stuff like that, promotional packages and stuff like that.
Sorry if that doesn't help much but I'm not in US so it's hard for me to know how the market works or the actual prices charged.
PS.: I have a "mobilization" fee which is basically a minimum fee for being at the location as hired, and I also charge "travel" to the location. Both fees are independent from the "job fee" and also non-refundable, at least in most cases.
